Characterization of Novel Castor Oil-Based Polyurethane Polymer Electrolytes
AbstractCastor oil-based polyurethane as a renewable resource polymer has been synthesized for application as a host in polymer electrolyte for electrochemical devices. The polyurethane was added with LiI and NaI in different wt% to form a film of polymer electrolytes. The films were characterized by using attenuated total reflectance-Fourier transform infrared spectroscopy, dynamic mechanical analysis, electrochemical impedance spectroscopy, linear sweep voltammetry and transference number measurement. The highest conductivity of 1.42 × 10−6 S cm−1 was achieved with the addition of 30 wt% LiI and 4.28 × 10−7 S·cm−1 upon addition of 30 wt% NaI at room temperature. The temperature dependence conductivity plot indicated that both systems obeyed Arrhenius law. The activation energy for the PU-LiI and PU-NaI systems were 0.13 and 0.22 eV. Glass transition temperature of the synthesized polyurethane decreased from −15.8 °C to ~ −26 to −28 °C upon salts addition. These characterizations exhibited the castor oil-based polyurethane polymer electrolytes have potential to be used as alternative membrane for electrochemical devices. View Full-Text
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Ibrahim, S.; Ahmad, A.; Mohamed, N.S. Characterization of Novel Castor Oil-Based Polyurethane Polymer Electrolytes. Polymers 2015, 7, 747-759.
Ibrahim S, Ahmad A, Mohamed NS. Characterization of Novel Castor Oil-Based Polyurethane Polymer Electrolytes. Polymers. 2015; 7(4):747-759.Chicago/Turabian Style
Ibrahim, Salmiah; Ahmad, Azizan; Mohamed, Nor S. 2015. "Characterization of Novel Castor Oil-Based Polyurethane Polymer Electrolytes." Polymers 7, no. 4: 747-759.